Milking machine



vw. uk AND s. NIELsEN.

. NHLKING MACHINE. APPLICATION FILED cr.'21. :920.

Patented May23, w22..

2 SHEETS-SHEET l.

WILLAM FREDERICK TURN AND To all to tem` t may @0f/mera Be it known thatwe, Winnaar llimnniiicii Trini; and Siiroiv lliiiiisniv, subjects oi1.the liling or. Great Britain, residing at Brisbane, in the State otQueensland, Commonwealth oi Australia, have invented certain new anduseful. improvements iiior Relating to llllille.

ing "lllachines, ot `which the` 'tollowinlrj,` is a speciiieation.`

This invention relates` to milking machines., the ohject being toprovide an improved releaser, an improved pulsatoiior operating; same,and an improved lior use in connection therewith. The arrangement andoperation ot the releaserand pulsatoi is such that a more complete .andquicker removal ot the milk obtained while the milk and :ira is en avessel ot suitable shape and. material with` i tirely prevented:tronienterinu' the vacuum system `and tank. thus ensuring a much cleanerarrangement., ifree `from contamination. K.:

the teat cup is such that a better and more.

natural action is obtained as compared with other teat cups. and whenused in conjunc-I tion with the releaser and pulsator, to whichreiterenee has been made, a milking,v plant is produced which isla,great improvement on other plants. i

ln carrying' out thisinvention we provide a sloping'bottom and. dividedby a partition into two (receiver and ejector) compartiments,hereinafter referred to respectively as the receiver., and ejector. Anonreturn `vliap valve is iitted in the lower portion ot the partition sothat communication may be made at certain times between the `receiverand ejector. A. nonreturn tlap valve is 4also iitted onlthe outside otthe ejector. A. milk pipe from the milkingl system leads into thereceiver, Vthcoutlet from such milk pipe beingij iitted with aiiionVreturn flap valve.

lllaeh oi" the compartments is connected bv 3i 'ies with the aorte ot aiulsator or slide `valve arranged on the vacuum pipe. `This piilsator orslide valve is arranged and oper ated so that air is alternatelyadmitted and withdrawn .trom hothreceiver and eiector, when air is beingadmitted to one compartment it is Withdrawn from the other comthe reiromis.

The Aarranoenlent `and operation of cup.

S11/IGN Nieman, er `Baieee-tm. @Henneman AUSTRAJLA. i

irritante naci-ima'.

Specification of etters Patent. i jllmritedi .llllty 23, .lllllt'dappiicanon inea oci-.ober sii, lazo. i.

semaine. aiaaoi.

`that .the quantity ot air "Jassing through same may be regulated. T isair vent may beomitted, if desired, in some cases.

lille may, in some cases, (provide. a subsidiary `vacuum chamber onl themilk pipe. teat .cup

The teat cup isinade somewhatin the saine manner as at present, butiweuse an improved lining or inilator. HThis lining is oi rubber `or othersuitable material or ina` teriale oi uniform thickness. and has a numberoi indentations (preferably three) deeper .and widerat the` top or openend of the t-eat cup and tapering to a. point at the lower end,` beingsomewhat in the form ot an inverted haltcone. `.ils an alternative. wemay provide a number ot series of in-y dentations. 'lhese indentationswould be semispherical or other desired shape and decreasingin size anddepth trom the top to the bottom o't the lining. l

ln order that our invention may be better understood we will nowdescribe it with the `aid et the accompanying. drawings, in`

whichi i i Fig. l is a side sectional elevation of our releaser.

Figi'. 2 is adetail showing an alternative arrangement of valve.

Figs. Sand 4l are side sectional elevations ot alternative forms otreleasers.

Figi'. 5 is a side sectional elevation oi' our pulsator to an enlargedscale.

6 is an end. elevation oi? same.

Fig. i' is a sectional elevation oi our teat Fig. 8 is a sectionalIelevation ot the lining; (removed from the case)` on line 8-$, Fig. 9.

liig.' 9 is a sectional. plan oit same, on line 9-9. Fig. 7.

i() isa sectional elevation o'tan alten native torm of lining.

Fig. l1 is a general arrangement of a milk plant embodying ourinvention.

ln carrying out this invention vve provide l(it) a. vessel A of suitableshape and material and having a sloping bottom A1. The vessel A isdivided into two compartments, a receiver AZand ejector A3, by apartition A4. Vf e do `not bind ourselves to any particular shape ofvessel g' three shapes are shown in the drawings, of which we preferthat shown in F ig. l. In this case the two parts A2 A3 are joinedtogether, the partition A4 being interposed between them, by bolts andnuts, or so that they can he readily taken apart for cleaning. In Fig. 3the part A2 is arranged diagonally as in F ig. l and the part A3 isvertical, the partition A4 being interposed between them where they arejoined together. In F ig. 4 the two parts A2 A3 are vertical, thepartition A4 being placed as in Figs. lIl, 2 and 3. At the bottom of thepartit-ion A4 or at the end of a spout B leading from the receiver A2 tothe ejector A3 is a liap valve C. A flap valve G1 is also itted on theoutlet of the ejector A3. rillhe milk pipe D fromr the milk system leadsinto the receiver A2, a flap valve D1 being fitted on the outlet of suchpipe D. This valve D1 is, generally speaking, provided with an air ventD2, vhich may be adjustable or ot a predetermined area so that theamount ol air which passes through it may be con* trolled. There may becertain times when the vent may be closed.

Each compartment A2 A3 is connected respectively to the receiver andejector ports E E et the pulsator er slide valve E2 by the pipes E3 E4.This pulsator E2 is fitted with a slide E5 operated from a convenientsource et power supply. The vacuum port EG leads :from the pulsatoi: tothe vacuum pipe E, on which 'it is `clamped or otherwise secured. Theslide E5 is formed so that communication may be inade alternatelybetween the receiver port E and vacuum port E6 and ejector port El andvacuum port EG, and also so that the ports E El may be intermittentlyopened to air. The air passage (l. which leads from the receiver port Eto the port G1, may be fitted with an adjustable pin or other valve H orit may be oi an area as iound most suitable, thus rendering the valve l;uunec'essary, the passage ot air being controlled either by the valve Hor area ot' passage G and port G1 when such valve .H is not fitted.

The teat cup casing K is similar to those at present in use. The liningor intlator L is made of rubber or other suitable nuiterial or materialsoiE uniform thickness and may be reinforced or not desired. It is formedwith a number oic indentations L1 (preterably three) deeper and wider atthe top or open end-L2 and tapering'to a point ton wards the lower endL3, being somewhat in theiorm of an inverted. halt cone hemisemispherical at the upper end. We may provide, in lieu of the groovesL1, a number of series of indentations L of seinispherical or otherdesired shape, decreasing in size and depth from the top L2 towards thebottom L3 oi the lining or infiator L.

The lining C is secured in the casing A :it the top by the mouth pieci`N :ind at (he bottom by the outlet piece P.

In carrying out our invention we may vary the constructional detailswhich do not affect the essential 'features oit our invention.

The usual vacuum pumps M, reservoir h'. milk pipe D, vacuum pipe E.vacuum gauge Q, salety valve R, and pulsator S. Y'or operating thelining L oi the teat cup li would be provided.

l/Ve may also lit a vacuum chamber 'l in the milk pipe D. The operationof our invention is somewhat the same as milking :ippliances at presentin use, but it will he geen that the vacuum in the receiver A: is :itrertain times entirely cnt olf. a control hd ile quantity ot air beingadmitted not only into the receiver A2 but also, in some cases, towithin thelining Lot' the teatrup K. lfVith lheslid:` E et the specialpulsator E2 in the position shown in Fig. 5, the ejector A is incommunication through the ports El. E", and pipil El with the vacuumpipe l". Willi ordinary systems the receiver AL' would also he connectedto the vacuum pipe l", the result being that While thtI atmosphere wouldkeep the valvej C1 closed. and owing to there heini): vacuum on bothsides oi th:` valve (l. the weight oi milk in the receiver il? wouldopen the valve C and allow it to flow info the ejector A. Accordingl tothis invention :i controllable quantity ol air is admitted through thepassage (i through lhe port .ll and pipe E into the receiver il toassist in discharging the milk therefrom into the ejector A, and also toprevent any milk or spray getting into the vacuum systen l or reservoirN. A controllable qnixniily oi" air may be admitted through the venll)Land valve (not shown) in the (lap valve l) to the milk pipe l) andthence to the inside ot the lining L oi (he tent up l. thus as` sistingthe action oi the vacuum on the oui'- side ot the lining L. The airadmit ted to ihe receiver A2 and milk pipe l) is such that it does notunduly break down the vacuum therein. In some cases the air may be prvented ilrom enteringl the milk pipe l).

(ln the valve Ei' oi' the pnlsaor E2 heini; moved over. the ejector il.opens lo the almosphere through the pipe lii* and port l. and thepressure in the ejector A". being equalized with that outside. the valvet" opens by the pressure oiE the milk. whiih may then iiow out. Thereceiver .if through the pipe E3 and ports E E- then communicate withthe vacuum pipe F, and the milk is caused to How irom the milk pipe l)through the valve Dl into the receiver the valve C being prevented fromopening si ff llo lill) 1 loy the air pressurein the ejector A3. Al-

though, generally' speaking,` We preter to use aseparatc pulsator tittor operating the `teat cup` li, the area hetvveenthe lining ,la

and casing may he connected to the port ot the special pulsator E2. i

@Wing to the" :tcrmation et thelining L ot the operation oi the pulsatorhereinhefore described and reterred to, a better and more natural actionis obtained, 'llie air pressure is exerted on the outside oi the lininoli lirst at the u 3er end of the teat `cup on the root ot the teat andthen towards thelovver end oit the teat cup. and, furthermore, thetoi'nflation lining L is such that when the air is admitted to theinside @through the action ot the pulsator lil2 and ,ing machines, avessel having a receiver conipartment andv an ejector compartment, amilk pipe leading` into said receiver, a valve on the end ot said milkpipe, a valve on the outlet from said receiver to said ector and a valveon the outlet from said ejector, and means tor controlling the alternateadmisw sion and Withdrawal ol' air to and from said receiver and saidejector, alternately.`

2. ln improvements in or relating to millo partinent and an ejectorcompartment, a milk pipe leading into said receiver, a valve on the endoit said milk pipe, a vent in said valve, a valve on the outlet tromsaid receiver to said ejector and a valve on the outlet from saidejector, and means for controlling the alternate admission andWithdrawal of air to and from said receiver and said ejector,alternately.

8. llii improvements in or relating to milking machines, a pulsatorhaving a port communicating with a vacuum pipe, a port which may heconnected with a receiving compartment of a releaser, a port which mayhe connected With an ejector compartment of a releaser, a passage andport leading `:from said second mentioned port, means for controllingthe 'passage ot airthrough said passage and port, a slide in saidpulsatoi adapted to close and open either ot said ports. i i

4f. ln improvements in or relating to milking` machines, a vessel havinga receiver compartment and an ejector compartment, a milk pipe leadinginto said receiver, a valve on the end ot said milk pipe, a valve on theoutlet from said receiver to said ejector, and a valve on the outletfrom said ejector, a `pulsator having a port communicating with a vacuumpipe, port communicating ing machines, a vessel having a receiver com-`with said receiver compartment, a port communicating with said ejectorcompartment, a passage and port 'leading Ytrom said second mentionedport, means Ytor controlling the passage of air through said passage andport, a slide in said pulsator adapted to close and openeither of saidports, and pipes for forming communication between said ports and saidcompartments.

5. ln improvements in milking machines, a passage having a receivercompartment and an ejector compartment, a milk pipe leadino' into saidreceiver, a valve on the end o? said milk pipe, a valve on the outletfrom said receiver to said ejector, a valve on the outlet from saidejector, a pulsator having a port communicatingl with a vac* uuin pipe,a porticommunicating With said receiver compartment, a portcommunicating with said ejector compartment, a pas sage and port leadingfrom said second mentioned port, means for controlling` the passage otair through said passage and port, a slide in said pulsator adapted toclose and open either of said ports, pipes 'for forming communicationbetween said ports and said compartments, a teat cup, and a lining for isaid cup of uniform thickness having a number of indentatioiis thereindeeper and wider at the top and tapering to a point at the bottom.

6. ln improvements in milking machines, a passage having a receivercompartment andan ejector compartment, a milk pipe leading` into saidreceiver, a valve on the end oit.' said milk pipe, a valve on the outletj 'from said receiver to said ejector, `a valve on the outlet from saidejector, a pulsator having a port communicating with a vacuum pipe, aport communicating` with said receiver compartment, a port communicatingwith said ejector compartment, a passage and port leading from saidsecond mentioned port, means for controlling the passage of air throughsaid passage and port, a slide in said pulsator adapted to close andopen either of said ports,`pipes 'for 'forming communication hetvveensaid ports and said compartments, a teat cup and a lining for said cupot uniform thickness having a numher oiE substantially semisphericalindentations therein.

7. ln improvements in or relating to milking machines, a vessel having areceiver compartment and an ejector compartment, a milk pipe leadinginto said receiver, a valve on the end ot said milk pipe, a valve on theoutlet trom said. receiver to said ejector, and a valve on the outlettrom said ejector, a pulsator having a port communicating with a vacuumpipe, a port communicating with said receiver compartment, a portcommunin eating with said ejector compartment, a pas sage and portleading from said second mentioned port, means for controlling thepassage of air through said passage and port, a slide in said pulsatoradapted i0 close and open either of said ports, and pipes for formingcommunication between said ports and said compartments, temi cup7 alining 01 nator for said beat cup hrm/ing 11 mum ber of ndentutionstherein.

In testimony whereof We 21H1); our sig-nzlcures in the presence of twowitnesses.

WILLIAM FREDERTCK TUHH. SIMON NIELSEN. VVitneSses ALEXANDER UQDERSON7Emmnm'u A M QHMUN

